html {
    scroll-behavior: smooth;
}
body {
    padding: 0;
    margin: 0;
}
.navbar {
    background:#f90;
}
.nav-link,
.navbar-brand {
    color: #fff;
    cursor: pointer;
}
.nav-link {
    margin-right: 1em !important;
}
.nav-link:hover {
    color: #000;
}
.navbar-collapse {
    justify-content: flex-end;
}
.description {
	left: 50%;
	position: absolute;
	top: 45%;
	transform: translate(-50%, -55%);
	text-align: center;
}
@media only screen and (max-width:610px){
    .description h1 {
	font-size: 32px;
    }
    .description h2 {
	font-size: 27px;
    }
}
.header {
    background-image: url('images/imsc.jpeg');
    background-size: cover;
    background-position: center;
    position: relative;
}
.overlay {
    position: absolute;
    min-height: 100%;
    min-width: 100%;
    left: 0;
    top: 0;
    background: rgba(255, 255, 255, 0.2);
}

.description button {
    border:1px solid #6ab446;
    background:#6ab446;
    border-radius: 0;
    color:#fff;
}
.description button:hover {
	border:1px solid #fff;
    background:#fff;
    color:#000;
}